l. A fast food restaurant has customers arrive at the checkout counter on average everyr 2.4 minutes. The service rate is 45 customers per hour. it} marks a) What is the utilization? b) What is probability that there are zero customers at the counter [either in line or being served}? c] What is the probability that there are two or more customers at the checkout counter? d] What is the probability that there are l or 2 customers at the counter"? c) What is the average number of Customers waiting in litte'.'l i) It" the store wanted the average time in the system to be 5 minutes, what would the service rate have to be? 3] What is the probability that checkout time will take between 1 and 2 minutes? h] What is the probability that checkout time will take more than 2 minutes